More cards in this set

Card 16

Front

It is an...

Back

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Card 17

Front

Has no...

Back

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Card 18

Front

Tiny...

Back

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Card 19

Front

Is blocked by...

Back

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Card 20

Front

Background Radiation is ionising radiation from...

Back

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Card 21

Front

from devices such as x-ray tubes and...

Back

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Card 22

Front

Some of these isotopes are present because of nuclear...

Back

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Card 23

Front

Other reasons could be due to food and drink...

Back

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